bell cow
n.— «But the goal is always the same, finish early and often. That, meanwhile, is the job of the “bell cow,” a term for the team’s lead runner who’s job it is to jump out early and interrupt another team’s pack.» —“Cross country siblings running the pack” by Justin L. Oliver in Texas A&M University North Texas e-News Nov. 4, 2005. (source: Double-Tongued Dictionary)
Further reading
On a busy day in the emergency room, Alisa of Dallas, Texas, told an efficient colleague that she was really humming, meaning it as a compliment. Her colleague took offense, maintaining that humming meant “smelly.” Since the 18th...
What if, instead of being an inanimate object, a dictionary were alive? That’s the idea behind a lavishly illustrated new children’s book called The Dictionary Story (Bookshop|Amazon) by Oliver Jeffers and Sam Winston. This is part of a...